Apparatus for water treatment

Details Apparatus for water treatment Apparatus for water treatment

2004-06-25

2008-03-04

Barry, Chester T. (Department: 1724)

Liquid purification or separation

With gas-liquid surface contact means

Reexamination Certificate

active

07338597

ABSTRACT:
An apparatus and method for treatment of water borne oxidized contaminants, using hydrogen as an electron donor for denitrification and reduction of other oxidized contaminants. Preliminary results reported here show that a biofilm of autotrophic denitrifiers accumulates rapidly in the wastewater setting, the MBfR can drive NO3−concentrations below 1 mgN/L, and the H2pressure controls the NO3−flux.

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Cowman, J; Torres, C; and Rittmann, B; Total Nitrogen Removal in an Aerobic and Anoxic Membrane Biofilm Reactor System: Environmental Engineering and Science Program, Northwestern University, Evanston, Illinois, Apr. 27, 2004.
Rittmann, B; Nerenberg, R; Stinson, B; Katehis, D; Leong, E; and Anderson, J; Hydrogen-Based Membrane Biofilm Reactor for Wastewater Treatment; Northwestern University, Department of Civil and Environmental Engineering, Evanston, Illinois, 2004.
Nerenberg, R; Rittmann, B; Gillogly, T; Lehman, GE; and Adham, SS; Perchlorate Reduction Using a Hollow-Fiber Membrane Biofilm Reactor Kietics, Microbial Ecology, and Pilot-Scale Studies: Northwestern University, Evanston, Illinois, 2002.
Nerenberg, R: Rittmann, B; and Najm, I; Perchlorate Reduction in a Hydrogen-Based Membrane-Biofilm Reactor; Journal AWWA. 94:11, Nov. 2002.
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Lee, KC; and Rittmann, B; Effects of pH and precipitation on autohydrogenotrophic denitrification using the hollow-fiber membrane-biofilm reactor; Water Research 37, 2003, 1551-1556.
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